Year Dollars 1992-01-01 190631 1997-01-01 1677081 2002-01-01 2067211 2003-01-01 4151570 2004-01-01 1284442 2005-01-01 4053684 2006-01-01 2680801 2007-01-01 3332759 2008-01-01 5883693 2009-01-01 5351144 2010-01-01 6745230 2011-01-01 5843007 2012-01-01 9198724 2013-01-01 11731485 2014-01-01 13908906 2015-01-01 15601818 2016-01-01 9736938